. Author manuscript; available in PMC: 2013 Oct 19.

Published in final edited form as: J Occup Environ Med. 2009 Jul;51(7):848–857. doi: 10.1097/JOM.0b013e3181aa0106

Table 5. Estimated association coefficients within tertiles of each bone lead concentration.

	Tibia Lead		Patella Lead
Bone Tertile	Estimate	P value	Estimate	P value
1st	0.018	0.49	0.006	0.75
2nd	0.093	0.004	0.078	<.0001
3rd	0.090	<.0001	0.065	<.0001
P-value	0.03		0.02

Pair-wise comparison of the association coefficients
2nd vs. 1st	0.075	0.14	0.072	0.03
3rd vs. 1st	0.072	0.01	0.059	0.006
3rd vs. 2nd	-0.003	0.93	-0.013	0.58

Tibia lead tertiles (μg Pb/g bone mineral): <16 (average: 9.6), 16-24 (19.4), >24 (35.5)

Patella lead tertiles (μg Pb/g bone mineral): <21 (13.2), 21-33 (26.3), >33 (51.5)